Cutter-head.



J. W. BUGKHART.

CUTTER HEAD.

' APPLICATION FILED'DBG.8,1913.- 1 1 22,47 1 Patented Dec. 29, 1914.

2 SHEETS-SHBET 1.

awve/wltoz J W. BUCKHART wi/waooao wWM J. W. BUOKHART.

CUTTER HEAD.

APPLICATION FILED DEC. 8, 1913.

1', 1 22,47 1. Patented Dec. 29, 1914.

2 SHEETSSHBET 2.

all! j lh, 0O I .IVVBUCKHART Q/vHM wooeo m (\S S O3 I W M Q 4" HE NORRIS PETERS 60.. PHOTO LITHI1. WASHING TON. D. 1'

To all whom it may concern:

Be it known that I, J AMES lV. BUOKHART, acitizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented certain new and useful. Improvements in Cutter- Heads,of which the following is a specifia cation, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in cutter and matcher heads and more particularly to an improvement on my former Patent Number 1,062,634,

issued May 27th, 1913, and the primary object of the invention is to provide a cutter head having improved bits or cutters in connection therewith.

A- further object of the invention resides in providing such cutters or bits as may be arranged in combination, one with the other,

whereby to provide improved patterns or designs in wood.

. In addition to the numerous other objects set forth in my prior patent, a still further object resides in providing a device which is simpleand durable in construction, inexpensive to manufacture and one which will be very efficient and useful in operation.-

' :elevation of a cutter head constructed in With these and other objects in view,the invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter referred to and more particularly pointed out in the specification and claims. I

the accompanying drawings forming a part of this application, Figure 1 is a side accordance with my invention, with parts broken away. Fig. 2 is a bottom plan view thereof. Fig. 3 is a section as seen on line 33, Fig. 1. Fig. 4 is a plan-view of one of the sliding members. Fig. 5, is a plan view of one. of the bits used in the preferred form of the device. Fig. 6 is a similar view of an additional form of cutter used inthe' preferred form of the device.

In describing my invention, I shall refer to the drawings in which similar reference characters designate corresponding parts throughout the several views and in which 1' indicates a sleeve or hub which is enlarged CUTTER-HEAD. I

Specification of Letters Patent.

T 1 SAT ATENTQ F 9 I I JAMES w. BUCKHART, or sa vaosn, CALIFORNIA. 1

p Patented Dec. 29, 19141-2 1 Application filed December 8, 1913. Serial No. 305,396. I w

at one end thereof to form a .head2, the

latter being dodecagonal in cross secti'oni This head 2 which is slotted, forms a dodec-" ahedron and the alternate faces thereof have formed or otherwise secured thereon the right angular projections 3, the same extending from one end of the head for the greater portion of the length thereof. The faces of theseproiections 3 are arranged an gular withirespect to the facesofthe-head on which the same are formed and the'flat plate-like cutters 4 are mounted on one face of said pro ections. Angular plates or cap faces of the projections, against which the cutters are directly received. The inner edges of the cutters 4 are slotted, as shown at 7 to receive therethrough the shanks of the setvscrews 6 and, it will be seen that these cap members will securely retain the cutters in place and admit of adjustability of said cutters on the head member. These cutters 4 may be said to be surface cutters.

The faces of the head 2 alternating the faces carrying the projections thereon are provided with slots or channels 8 which 6X- tend for the full length of said head and these slots'or channels are substantially T- shaped in cross section. Mounted for sliding movement inthe T-shaned channels or slots 8 are the strips 9 which are also T- shaped in cross section, and secured-in any desired manner toone end of each of said strips 9, is a footpiece or supporting block 10, the blocks 10 beinglocated in. the 'enlarged-portion of the slots 8. A projection is also formed on. theouter edge of each of the foot-pieces 10 which is designed to contact snugly with'a beveled edge '11 formed on the outer edge of one angular projection 3.

of the faces of each:

Loosely disposed through an-openingin each of the'foot-pieces or supporting blocks '10, is a bolt 12-having a nut 13 engagedwith the threaded outer end thereof and this bolt and nut-are adapted to clamp 'a pair of cutters-or bits 14 and 15 against one another and against one face of the foot-piece or supporting block 10. These bits or cutters 14 and 15 are designed to also fit snugly be-. tween the walls of the adjacent projections and have their cuttin edges projecting outwardly beyond the e ges of the latter. The bits or cutters 14 are milled, while the bits 15 have straight edges, the straight cutting edges being provided on a tooth-like projection thereof. The milled cutters or bits 14- are adapted to face against the footpieces or cutting blocks 10 while the bits or cutters 15 receive the heads of the bolts 12 thereagainst and said latter cutters or bits have the faces thereof offset, as shown at 16, to receive the heads of said bolts therein. The bits or cutters 14 and 15 are also slotted, as shown at 17 to receive the shanks of the bolts therethrough and from this construction, it will be seen that said bits or cutters are capable of adjustment radiallv The sliding strips 9 are axially adjustable in the slots 8 in the head, the strips 9 being provided with threaded openings in which set screws are mounted, the screws carrying washers 19 which are disposed between the headsof the bolts 18 and the periphery of the head 2 on opposite sides of the slots 8. I

When the heads of the bolts 18 are turned to engage the washers 19, the strips 9 are drawn outwardly so as to bind the outer faces of the heads of the strips against the walls of the slots as shown in Fig. 2 of the drawings, to hold the strips in their adjusted positions. The sliding strips 9 with the foot-pieces thereon may be said, to be cutter carriers and when it is desired to pro vide a pattern of particular design, a pair of such cutter carriers may be provided in each channel or slot, the same being disposed therein from opposite ends of the same. In the drawings, I have shown such a construction, wherein a pair of such cutter carriers are provided, each carrying a pair of cutters indicated as 1 1 and 15, and disposed in the channels from opposite ends thereof, soas to permit the cutters 15 to be opposed to one another. It will, of course, be'understood that a single cutter carrier with cutters thereon, or a pair of the same may be provided in connection with each channel or slot, as is found desirable.

From the foregoing it will be seen that I have provided a simple, inexpensive and efficient means for carrying out the objects of the. invention and while I have particularly described the elements best adapted to perform the functions set forth, it is obvious that various changes in form, proportion and in the minor details of construction may be resorted to without departing from Copies of this patent may be obtained for the spirit or sacrificing any of the principles of the invention.

Having thus described this invention, what I claim is 1. In a cutter head, a hub enlarged at one end and designed to form a prismatic head, projections formed on the head and spaced at regular intervals throughout the periphery thereof, cutters adjustably carried on said projections, said head being provided with longitudinal slots in the spaces between said projections, strips adjustably mounted in the slots of said head and each being provided with a foot piece, said foot pieces being designed to fit snugly between the adjacent projections, a bolt mounted in each of the foot pieces, additional cutters carried on each of said bolts and also fitting snugly between the adjacent projections of the head, one of said additional cutters on each bolt having a recess formed in the outer face thereof to receive the head of the bolt whereby the bolt head is disposed flush with the outer face of the cutter, and means for adjustably securing said strips in the slots.

' 2. In a cutter head of the class described, a hub enlarged at one end and designed to form a prismatic head, projections formed on the head and spaced at regular intervals throughout the periphery thereof, cutters adjustably carried on said projections, said head being formed with longitudinal slots in the spaces between said projections, a pair of strips adjustably mounted in each of the slots and provided at their opposing ends with a foot piece, said foot pieces being designed to fit snugly between the adj acent projections, additional cutters carried on each of said foot pieces, the opposing cutters of each pair of foot pieces being formed with a recess in its opposing face, bolts disposed through said cutters and said foot pieces, the heads of said bolts being adapted for engagement in the recesses in said opposing cutters, whereby the opposing faces of the cutters which are mounted on each pair of foot pieces'are adapted to engage flush against each other, means mounted on said bolts to secure said cutters inposition upon said foot pieces, 'and'means for securing said strips in adjusted position in the slots.

In testimony whereof'I hereunto aflix my signature in the presence of two witnesses.

JAMES BUCKHART.

Witnesses CORNELIs J. R'Anw, WV. H. FERGUSON.

five cents each, by addressing the Commissioner of latents,

Washington. 20,0. 

